Explanation of Names
Dichomeris marginella (Fabricius, 1781)
Alucita marginella Fabricius, 1781
* phylogentic sequence #070100
Forewing length 5.5-8 mm. (1)
Larva to 14 mm (Weiss & Lott, 1922).
Pupa about 5.5 mm (Weiss & Lott, 1922).
Larva - head dark reddish, body light brown with somewhat broken longitudinal stripes; median stripe reddish brown, submedian stripes whitish, sublateral dark brown, lateral stripes light reddish brown.
Introduced from Europe several times. There have been adventive colonies in the Northeast, Midwest, and British Columbia south through California. (1)
Adults are present during June and July.(3)
Pupation occurs from mid May to early June.(3)
Eggs are laid singly on terminal needles. Newly hatched larvae mine in the needles and later feed gregariously in webs. Pupation occurs in a silken web of tied needles (Weiss & Lott, 1922).
Beadle, D. & S. Leckie 2012. Peterson Field Guide to Moths of Northeastern North America. Houghton Mifflin. p.66-67 (preview
Fabricius, J.C. 1781. Species insectorum 2: 307
Hodges, R.W. 1986. Moths of America North of Mexico, Fascicle 7.1, p.46; pl.1.14 (5)
Powell, J.A. & P.A. Opler 2009. Moths of Western North America. University of California Press. p.102, pl.10.37m (1)
Weiss, H.B. & R.B. Lott 1922. The Juniper Webworm, Ypsolophus marginella
Fabr. (Lepid., Gelechiidae). Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia 33(3): 80-82